Lexus ES: System Diagram
SYSTEM DIAGRAM

Communication Table
| Sender | Receiver | Signal | Line |
| Certification ECU (Smart Key ECU Assembly) | Main Body ECU (Multiplex Network Body ECU) | Luggage compartment door lock assembly open operation signal | CAN |
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SYSTEM DESCRIPTION LUGGAGE COMPARTMENT DOOR OPENER SYSTEM DESCRIPTION (a) If the trunk and fuel switch assembly (luggage compartment door opening switch) is pressed and the luggage compartment door is
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the luggage compartment door opener system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
OPERATION CHECK BASIC FUNCTION INSPECTION (a) When the trunk and fuel switch assembly (luggage compartment door opening switch) is pressed, check that the luggage compartment door unlatches. (b) While
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INSTALLATION PROCEDURE 1. INSTALL NO. 2 CLEARANCE WARNING BUZZER (a) Connect the connector. (b) Engage the clamp to install the No. 2 clearance warning buzzer. 2. INSTALL PACKAGE TRAY TRIM PANEL ASSEMBLY (w/o Rear Sunshade) Click here 3. INSTALL PACKAGE TRAY TRIM PANEL ASSEMBLY (w/ Rear Sunshade)
PrecautionPRECAUTION
Before disassembling the differential assembly, thoroughly clean it by removing any sand, mud or foreign matter. This will help prevent contamination during disassembly and reassembly.
When removing the differential side bearing retainer or any other light alloy parts,
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